Domino's Pizza, Inc.'s (NYSE:DPZ) price-to-earnings (or "P/E") ratio of 25.9x might make it look like a sell right now compared to the market in the United States, where around half of the companies have P/E ratios below 18x and even P/E's below 11x are quite common. Nonetheless, we'd need to dig a little deeper to determine if there is a rational basis for the elevated P/E.

With earnings growth that's superior to most other companies of late, Domino's Pizza has been doing relatively well. The P/E is probably high because investors think this strong earnings performance will continue. If not, then existing shareholders might be a little nervous about the viability of the share price.

If you'd like to see what analysts are forecasting going forward, you should check out our free report on Domino's Pizza.

Is There Enough Growth For Domino's Pizza?

There's an inherent assumption that a company should outperform the market for P/E ratios like Domino's Pizza's to be considered reasonable.

If we review the last year of earnings growth, the company posted a worthy increase of 12%. The latest three year period has also seen a 24% overall rise in EPS, aided somewhat by its short-term performance. Accordingly, shareholders would have probably been satisfied with the medium-term rates of earnings growth.

Shifting to the future, estimates from the analysts covering the company suggest earnings should grow by 7.5% per year over the next three years. With the market predicted to deliver 11% growth per year, the company is positioned for a weaker earnings result.

With this information, we find it concerning that Domino's Pizza is trading at a P/E higher than the market. Apparently many investors in the company are way more bullish than analysts indicate and aren't willing to let go of their stock at any price. There's a good chance these shareholders are setting themselves up for future disappointment if the P/E falls to levels more in line with the growth outlook.

The Final Word

Typically, we'd caution against reading too much into price-to-earnings ratios when settling on investment decisions, though it can reveal plenty about what other market participants think about the company.

We've established that Domino's Pizza currently trades on a much higher than expected P/E since its forecast growth is lower than the wider market. Right now we are increasingly uncomfortable with the high P/E as the predicted future earnings aren't likely to support such positive sentiment for long. Unless these conditions improve markedly, it's very challenging to accept these prices as being reasonable.

It's always necessary to consider the ever-present spectre of investment risk. We've identified 3 warning signs with Domino's Pizza (at least 2 which can't be ignored), and understanding them should be part of your investment process.

If these risks are making you reconsider your opinion on Domino's Pizza, explore our interactive list of high quality stocks to get an idea of what else is out there.

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This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.